Semiconductor Memory Design. Organization of Memory Systems Driven only from outside Data flow in and out A cell is accessed for reading by selecting.

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Presentation on theme: "Semiconductor Memory Design. Organization of Memory Systems Driven only from outside Data flow in and out A cell is accessed for reading by selecting."— Presentation transcript:

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Basic SRAM and VTC A wordline is used to select the cell Bitlines are used to perform read and write operations on the cell

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Cross Coupled Configuration The cell can only flip its internal state when one of its internal cross V S. During a read op, we must not disturb its current state. During a write op, we must force the internal voltage to swing past V S to change a state.

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6T SRAM Cell Can be replaced by undoped polysilicon to minimize area. Use high threshold transistors to reduce leakage current.